|
Slowing down a dc brushless ceiling fan
|
|
1
|
187
|
October 29, 2023
|
|
World-class manufacturing qualities?
|
|
0
|
330
|
November 8, 2021
|
|
A two-winding 220 V/110 V, 1.5 kVA transformer is reconnected as a ___
|
|
0
|
526
|
August 30, 2021
|
|
Major insulation in a transformer is the insulation between the ___
|
|
0
|
466
|
August 30, 2021
|
|
The stator core of a 3-phase induction motor is taminated in ___
|
|
0
|
179
|
August 30, 2021
|
|
In a self excited induction generator, to keep the frequency of generated voltage constant with ___
|
|
0
|
310
|
August 29, 2021
|
|
The direction of rotation of a split-phase induction motor can be reversed by ___
|
|
0
|
175
|
August 29, 2021
|
|
Which motor should not be used for centrifugal pumps?
|
|
0
|
424
|
August 29, 2021
|
|
An electric train employing a dc series motor is running at a ___
|
|
0
|
145
|
August 29, 2021
|
|
The dc motor most suitable for applications requiring high starting torque is ___
|
|
0
|
171
|
August 29, 2021
|
|
A 220 V dc machine supplies 20 A at 200 V as ___
|
|
0
|
173
|
August 29, 2021
|
|
When a dc cumulative compound wound motor is ___
|
|
0
|
652
|
August 29, 2021
|
|
The toque-speed characteristic of a dc shunt motor is ___
|
|
0
|
166
|
August 29, 2021
|
|
If the terminal voltage of a dc shunt motor is halved with the ___
|
|
0
|
322
|
August 29, 2021
|
|
Armature torque of a dc motor is a function of which of the following factors?
|
|
0
|
198
|
August 29, 2021
|
|
In case of a dc series motor it is possible to have finite no-load speed if a ___
|
|
0
|
297
|
August 29, 2021
|
|
A 400 V dc shunt motor takes 5 A at ___
|
|
0
|
245
|
August 29, 2021
|
|
A flywheel is normally fitted to ___
|
|
0
|
200
|
August 29, 2021
|
|
A series motor is working drawing a load current of 1 A from the ___
|
|
0
|
274
|
August 29, 2021
|
|
The direction of rotation of a dc motor can he determined by ___
|
|
0
|
144
|
August 29, 2021
|
|
A 240V dc shunt motor with an armature resistance of 0.5 Ω has a full-load current of ___
|
|
0
|
176
|
August 29, 2021
|
|
With the increase in speed of a ___
|
|
0
|
156
|
August 29, 2021
|
|
Torque developed in a dc motor depends upon ___
|
|
0
|
404
|
August 29, 2021
|
|
In the case of parallel operation of dc compound wound generators, for proper division of ___
|
|
0
|
157
|
August 29, 2021
|
|
When is the mechanical power developed by a dc motor maximum?
|
|
0
|
206
|
August 29, 2021
|
|
A dc series generator is employed ___
|
|
0
|
223
|
August 29, 2021
|
|
A dc generator will be flat compounded if ___
|
|
0
|
192
|
August 29, 2021
|
|
A thicker wire is used in dc series motor field winding than that in a ___
|
|
0
|
200
|
August 29, 2021
|
|
A shunt generator has a critical field resistance of 200 ω at a ___
|
|
0
|
203
|
August 29, 2021
|
|
A 220 V dc machine has an armature resistance of ___
|
|
0
|
179
|
August 29, 2021
|